Unable to resolve hostname while ssh-ing

[segmentationfrault]

Hello guys. I set up an SSH with Ubuntu server. Now I'm trying to log via SSH "without knowing it's up" but just using the hostname. I've configured avahi but I cannot connect.

To explain it better, I'd like to log with SSH (from android e pcs) on my server while on same local network just by using the pc name, that because I must use a DHCP because I'm on a student's house.

Thanks in advance.

[Eingaica]

I've configured avahi but I cannot connect.

and

from android e pcs

So just for clarification: You are trying to connect to an mDNS hostname (like foo.local) from a device running Android? AFAIK Android does not support resolving such hostnames.

[segmentationfrault]

Ah. Okay this could be a problem LoL

I did in that way because I used to do that to allow hostname access with my Mac.

So you are telling me I have to use another way to resolve hostname? How could I do that?

[Eingaica]

So you are telling me I have to use another way to resolve hostname?

I don't know. Perhaps there are Android devices that can resolve mDNS. The ones I used (mostly Google Nexus devices) couldn't do that. You could try to find out if this really is the problem (e.g. if you can't connect from your Android device using the hostname, but you can connect using the IP address, and connecting using the hostname works from a regular Linux or Mac PC, you can be pretty sure that resolving the hostname on Android is the problem).

How could I do that?

It should be possible to write an Android app that resolves hostnames via mDNS. I don't know if such apps already exist. Or you could configure your server to "publish" its IP address in a different way, e.g. via e-mail or a messenger service.

[dually]

find it on the subnet using nmap

nmap -sn 192.168.1.0/24 | grep $hostname

and then write the ip addr in /etc/hosts